Chiikawa Relationship Chart Guide | 10 Episodes That Reveal the Original Manga's Relationships

Relationship Table: Check Character Pairs, Relationships, and Supporting Scenes First

At the heart of the relationship chart are the play and mutual help of Chiikawa, Hachiware, and Usagi. From there, connections extend to Yoroi-san's (Armor Knight) hospitality, Rakko's thoughtfulness, and an invitation to work for Momonga. Rather than assigning titles, when actions verifiable in the original posts are used as relationship labels, the lines between characters look like this.

Conclusion: Relationships Can Be Grasped in 10 Episodes Where Conversation, Togetherness, and Mutual Help Are Visible

Based on the depictions in the original posts, we selected 10 episodes in which conversation, traveling together, mutual help, or role-sharing can be confirmed on screen, and even the sense of distance between two or more characters can be read. At the center are Chiikawa, Hachiware, and Usagi, who take photos of each other, stay close during crises, and together extend a hand even to strangers.

Around them are connected Rakko, who calls out to suggest rest or joins a journey; Momonga, who is invited to work; and Yoroi-san, who prepares meals. Moving into the longer arcs, companions including Kurimanju and Shisa also support a single action, and everyday friendships expand into large-scale collaborative efforts.

Rather than applying labels like family or best friends in advance, relationships become clearer by observing who called out to whom, stood beside them, and lent a hand in the moment. It is a very Chiikawa-like relationship chart, where lines multiply through actions rather than titles.

1. Camera | The Three Move Between Taking Photos and Being Photographed

Hachiware holds up the camera and photographs Chiikawa waving against the sky, and Chiikawa standing beside a tree stump. In the second shot, Usagi's ears peek out from behind the stump, and then Usagi joins the photo with a handstand. Hachiware finds the pose amusing, and Chiikawa and Usagi revel together.

It is characteristic of the three that Hachiware is not the only one playing the caretaker role; the two being photographed also expand the play. A single bout of photo play captures their uninhibited closeness as it is.

2. Fried Chicken and Lemon | The Three Respond Each in Their Own Way to Yoroi-san's Hospitality

When Yoroi-san prepares a heaping pile of fried chicken, Hachiware expresses thanks while marveling at the quantity, and Chiikawa and Usagi also gather at the table. Just after Hachiware asks whether to add lemon and Chiikawa responds that a small amount would be fine to try, Usagi squeezes half a lemon hard, sending juice flying forcefully not only onto the fried chicken but right in front of them.

This episode shows at once the roles of Yoroi-san cooking, the two discussing moderation, and Usagi blowing moderation itself away. Even the tempo of a calm meal turning into an uproar within seconds has the flavor of a close-knit dinner table.

3. Nighttime Events | The Two Stay Beside an Immobilized Hachiware

After touching something like a black shadow, Hachiware finds it hard to move. Even so, he reaches out toward a blue ribbon-like object, while Chiikawa and Usagi watch the shadow's movements and his hands up close. It is a scene that shifts from a moment of running away to one of supporting a captured companion's actions at his side.

The three's relationship shows itself not only in fun daily life but also in how they keep their distance even when things go wrong. The more tense and wordless the scene, the more the weight of being there beside each other stands out.

4. A Short Break | Hachiware Takes Rakko's Words to Heart

Usagi, Shisa, Chiikawa, Hachiware, Kurimanju, Furuhonya, and Momonga each take a breather with devices, books, notebooks, costumes, drinks, and by the water. Rakko, carrying a sword, also appears, and when he suggests resting today, Hachiware accepts the words.

Because Rakko, whose appearance evokes battle or training, recommends rest, this is a scene where strength appears as kindness. The brief exchange between the one urging rest and the one who listens openly condenses both dependability and trust.

5. Meeting Someone Crying | The Three Approach a Stranger Together

Chiikawa, Hachiware, and Usagi find a small creature crying. They do not leave it alone but approach, and while soothing it, consider taking it to the arcade. Usagi's energy, Hachiware's gentle call, and Chiikawa's watching expression overlap as the three face a companion whose purpose they do not yet know.

Rather than closing within the bonds of their own group, they widen the circle toward a being in trouble — an important branch of the relationship chart. It becomes a gentle encounter that tries to reassure first, before figuring out what the other is.

6. An Invitation to Night Gathering | Work Connects Hachiware and the Others with Momonga

In the night forest, Chiikawa, Hachiware, and Usagi, trying to gather mushrooms, encounter Momonga eating mushrooms. Hachiware invites them to come gathering together, explaining that with rewards they can eat whatever they like. Chiikawa adds that gathering is necessary, and they wait for the resistant Momonga's answer.

Speaking to the food-first Momonga by linking work and favorite foods is a Hachiware-like approach. The lively persuasion narrows the distance between the four, if only slightly.

7. A Night of Certification Study | Companions' Expectations Bring Chiikawa Back to the Desk

At home at night, Chiikawa faces a Weeding Certification book and notebook, but while lost in thought, lies down and nearly falls asleep. Then Hachiware asks about the progress, and Chiikawa recalls the conversation in which he answered that he was doing his best. He further imagines Hachiware and Rakko celebrating his passing, and gathering with Usagi and the others around gifts, and grips the pencil again.

Even during study time with no one beside him, companions' voices and faces support Chiikawa. It is a warm night in which relationships quietly find their way into one individual's effort.

8. Rakko Joins the Island Too | A Training Purpose Joins the Three's Journey

As Usagi, Chiikawa, and Hachiware hold the island's recruitment notice, Rakko approaches. While noticing the limited-time ramen and lodging conditions, he tries to check whether the place also suits training, and takes the notice and starts walking. As the three watch from a distance, Rakko shows through action his intention to join the journey.

Interest in food and a purpose of discipline fit within a single scene, a very Rakko-like way of deciding to come along. From here, the relationships built in daily life shift into the lineup for a long journey.

9. The Vines in the Cave | Journey Companions Gather as One Amid Crisis

The vines that kept swaying in the cave form a large bundle and lift the journey companions up together. Spotted by a large opponent and unable to get outside right away, the companions huddle together while gripping the thin vines.

Companions of different personalities and positions are physically gathered into one, a scene that even sharpens the line with their opposing counterpart. The narrowness of the escape route strongly highlights the group's cohesion.

10. A Joint Strategy at the Destination | Counterattack by Bringing Together Each One's Strengths

In the showdown on the island, roles are divided: weakening the opponent's movements, stepping forward, two members carrying an item that becomes the key to the plan, and supporting from behind. Hachiware assesses the situation and shares carrying duty with Chiikawa, while Usagi, Kurimanju, Shisa, Momonga, and Rakko connect their movements from other positions.

With carriers, supporters, and those advancing forward divided up, this is an episode where the relationship lines themselves become a strategy diagram. Even amid a flashy showdown, each person's small role shines.

Character-by-Character Connections Visible Across the 10 Episodes

The lines among Chiikawa, Hachiware, and Usagi shift: play and energy with the camera and at meals, accompaniment during nighttime crises, and calling out plus watching over when meeting strangers. Even for the same three, their roles differ each time. Scenes overlap in which Hachiware builds bridges with words, Usagi changes the flow with action, and Chiikawa takes in how the other person is doing.

Rakko has points of contact in both daily life and the longer arcs, through the scene recommending rest and the journey to the island. Momonga, while outside the three in the gathering invitation, moves to the side facing the same crisis at the destination. Reading relationships not as fixed labels but by position in each scene makes the fun of shifting distances easy to see.

Fan Theories: The Blank Spaces in Relationships That Make You Want to Draw a Relationship Chart

In August 2026, among Japanese fans on X, a fan who had watched the movie Chiikawa: The Secret of Mermaid Island posted that they had drawn a relationship chart with a spoiler warning attached. It is an actual observable example of the enjoyment of redrawing the lines between characters oneself after reading the original manga or watching the movie.

However, from that post's text alone, the combinations included in the chart or which relationships are widely supported cannot be confirmed. That blank space, where the answer cannot be pinned down to a single diagram, is precisely the charm that makes people want to draw relationship charts.

Reading in Publication Order: From 3 Everyday Episodes to the Island's Joint Strategy

Good entry points for the relationships are Volume 2's camera and fried chicken episodes, and Volume 4's nighttime events. You can compare in a short sequence the three's play, the dinner table with Yoroi-san, and how they stay together in crisis. Reading the gathering invitation to Momonga and Chiikawa's certification study afterward also captures the lines extending beyond the three.

If you follow through to the longer arcs, progressing from the scene where Rakko reads the island recruitment notice, to the crisis where companions huddle together at the destination, to the showdown where role-sharing is visible, connects the process of companions deepening their coordination. Since it touches the end of the island arc, if you do not want to know the plot in advance, stopping at the everyday episodes still gives a sufficient outline of the relationships. The order in which small daily kindnesses grow into long-arc coordination is striking.